Hey!

It seems like you haven't provided complete information. If you are referring to any application form, you will have to mention the name. But since you haven't mentioned any name, I will tell you the general case wherein if you have made any mistake and the institution provides the option of correction window for editing any details, you may correct the things which you have wrongly written (provided only if the concerned institution provides the editing option). So, if you get the option you can edit it accordingly.